-LRB- CNN -RRB- -- Bayern Munich dropped their first Bundesliga points of the season under new manager Pep Guardiola Tuesday -- frustrated by a late SC Freiburg equalizer in a 1-1 draw .

Guardiola made seven changes ahead of Friday 's European Super Cup showdown with Chelsea , but the European champions should have still wrapped up the three points .

Xherdan Shaqiri put Bayern in front in the 33rd minute at the Mage-Solar Stadium , but paid the price for failing to add to their advantage when Freiburg substitute Nicolas Hofler leveled with four minutes remaining .

It has left the Bundesliga champions with 10 points from four games , a point clear of arch rivals Borussia Dortmund , Bayer Leverkusen and Mainz , who all boast perfect records from three games .

An unbeaten Bundesliga run of 29 games , dating back to last season was also extended , but there was a worrying development for Guardiola when captain for the night , midfielder Bastian Schweinsteiger , limped off with an ankle injury near the end .

It had all looked so promising when German international Thomas Muller completed a superb run by crossing for Swiss star Shaqiri to open the scoring .

Muller and Shaqiri both had chances to double the advantage but Freiburg were rewarded for their endeavor when Sebastian Freis crossed for Hoefler to beat Manuel Neuer from close range .

Bayern laid siege to the home goal in the dying moments , but could not force the winner .

`` If you 're only 1-0 up in the Bundesliga , things like this can always happen , '' Guardiola told Bayern 's official website .

`` We have only ourselves to blame , '' added regular skipper Philipp Lahm , who came on as a second half substitute .

Meanwhile , Bayern 's Bundesliga rivals Schalke 04 secured their passage to this season 's Champions League group stages with a thrilling 3-2 win in Greece over PAOK Thessaloniki .

After a 1-1 draw in Germany last week , Schalke 's victory secured a 4-3 aggregate win , but they ended the match with 10 men after Jermaine Jones was red carded just after the hour mark .

The score stood at 1-1 at the time , but Schalke pulled ahead for the second time when Julian Draxler scored in the 79th minute , a crucial second away goal .

Konstantinos Katsouranis leveled for the home side , but Adam Szalai , with his second of the match , sealed a famous victory .

In their qualifying action , Arsenal wrapped up their place in the competition proper for the 17th straight time as two Aaron Ramsey goals saw them beat Fenerbahce 2-0 at the Emirates Stadium .

The English Premier League side had won the away leg in Turkey 3-0 but still fielded a strong side for the return leg , with Welsh international Ramsey again outstanding .

Steaua Bucharest , Austria Vienna and FC Basel will also go into Thursday 's draw .

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Bayern Munich held at SC Freiburg in Bundeslia

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Nicolas Hofler scores equalizer to deny Bavarian giants in 1-1 draw

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Bayern play Chelsea in European Super Cup Friday